About
Get to the scenic and tranquil Dorney Lake this July for an evening triathlon. A great event for novice and experienced athletes alike, this lake swim and flat run and bike courses is perfect opportunity for a PB or to try our a triathlon for the first time.
Sprint Triathlon, Super Sprint Triathlon, Sprint Aquabike, and 2 more
Wed, Jul 1, 2026
Where and when
Location: Lake End Rd & Court Ln, Dorney, Windsor SL4 6QL, UK
Start times:
- Sprint Triathlon: 6:30 PM
- Super Sprint Triathlon: 6:30 PM
- Sprint Aquabike: 6:30 PM
- Charity - Sprint: 6:30 PM
- Charity - Super Sprint: 6:30 PM
Route information
A flat and smooth course at the stunning Dorney Lake nestled within 450 acres of parkland makes this a perfect site for a personal best. The swim portion of the event takes place within the lake, and from here triathletes cycle the lake's perimeter along the tarmac. The final stretch, the run, will consist of an out-and-back along the lakeside. These events are suitable for participants of all abilities but perfect for beginners or those just starting out in this event.Course Details & Maps
Super Sprint Triathlon
400m Swim | 9.5km Bike - 2 Laps - Elevation 20m | 2.5km Run
Terrain - Road/Swim
Sprint Triathlon
750m Swim | 19km Bike - 4 Laps - Elevation 40m | 5km Run - 2 Laps - Elevation 6m
Terrain - Road/Swim
Sprint Aquabike
750 Swim | 20km Bike
Bike Map here
10k Run Map here
5k Run Map here
What's included
- Finisher's Medal
- Chip-timed results
- Marshalled course
- Refreshment station
- Aid station
- Bag drop
- Free race photos
How to get there
Lake End Rd & Court Ln, Dorney, Windsor SL4 6QL, UK
PARKING/TRAVEL
Free parking is available at Dorney Lake and will be signposted as you enter the venue. Please bear in mind there could be up to a 20-minute walk to registration depending upon which car park you find yourself in so we advise you to leave plenty of time for arrival.
Nearest Train stations: Slough and Windsor & Eton Riverside
Event day logistics
06:30 pm - All race distance starts
08:30 pm - Race End
CUT-OFF TIME
No, everyone is welcome, however please get in contact with us at [email protected] if you plan to take more than 3hrs to complete your race as we may need to make special arrangements around the course and event village.
MINIMUM AGES
There are age requirements for the following races:
Standard Triathlon - 17 years old and above
Super Sprint & Sprint Triathlon - 15 years old and above